Hypothesis Testing Concepts

Hypothesis testing for population mean with known standard deviation

Inferential statistics for population variance

Hypothesis testing for population mean with unknown standard deviation

Descriptive statistics for population mean

Because it is always zero

Because it is always known

Because it is often unknown in real-world scenarios

Because it simplifies calculations

They are less than 6 hours

They are unpredictable

They are exactly 6 hours

They are more than 6 hours

1%

5%

10%

20%

In the introduction

In the conclusion

In the alternate hypothesis

In the null hypothesis

Collect more data

Calculate the test statistic

Draw a conclusion

State the null and alternate hypotheses

R

Python

MATLAB

Excel

Divide by n

Divide by n-1

Multiply by n-1

Multiply by n

Because the sample mean is known

Because the population standard deviation is unknown

Because the sample size is large

Because the population mean is unknown

It is uniform

It is binomial

It is normal

It is exponential